Numeric keypad encryption for augmented reality devices

This is a system that makes physical numeric keypads more secure using augmented reality. It works by showing a scrambled, virtual keypad on an AR device's screen, overlaid on top of a real-world keypad. This virtual layout is precisely aligned by using QR codes placed on the physical keypad's keys. The system also checks if the AR device is being used by the correct person; if not, it can show a default set of numbers on the physical keypad.